If you are seeing the message on your control display—or suspect that an override is inhibiting your machine’s performance—you are dealing with a specific layer of logic within the FANUC ladder interface. This message is not just a notification; it is a diagnostic clue pointing toward how the machine’s inputs, outputs, and safety interlocks are interacting with the CNC controller.
Would you like help interpreting this message for a or FANUC control series ? fanuc wn57 override function is active
The spindle RPM is being manually adjusted away from the programmed S-code value. If you are seeing the message on your
The method for clearing WN57 depends entirely on the cause. Follow these scenarios: The spindle RPM is being manually adjusted away
The Fanuc status message is a warning (indicated by the WN prefix) notifying the operator that the machine's normal speed control has been superseded by an automated override setting . This is typically not a system fault but a notification that the controller is prioritizing a safety or process-specific speed limit. Core Meaning and Cause
WN57 OVERRIDE FUNCTION IS ACTIVE message is a PMC (Programmable Machine Control) alarm indicating that the Forced I/O Override feature is currently enabled Function and Purpose This is a debugging tool used by technicians to manually force PMC signals